A quote from T. H. Green, refuting the view that the law’s “only business is to prevent interference with the liberty of the individual,” construed as doing what you like as long as it does not infringe on others’ rights to do what they want. Green writes:

The true ground of objection to ‘paternal government’ is not that it violates the ‘laissez faire’ principle and conceives that its office is to make people good, to promote morality, but that it rests on a misconception of morality. The real function of government being to maintain conditions of life in which morality shall be possible, and morality consisting in the disinterested performance of self-imposed duties, ‘paternal government’ does its best to make it impossible by narrowing the room for the self-imposition of duties and for the play of disinterested motives.

From Green’s Lectures on the Principles of Political Obligation (PDF) [1883], quoted in Himmelfarb, The De-Moralization of Society, p. 152.

See also, “Moral Duties and Positive Rights.”